.test {
    /*字体加粗*/
    font-weight: bold;


}

.head {
    width: 600px;
    height: 200px;
    background-color: antiquewhite;
}

.content {
    width: 600px;
    height: 200px;
    background-color: rebeccapurple;

}

.foot {
    width: 600px;
    height: 200px;
    background-color: brown;

}